Mastbe



2 sheets-sheet v1..A

(No Model.)

E. R. MOMASTER.

WINDMILLr PatentedApr. 26, 1887.

N, PETERS. Fhmwumogmpxmr, wasmngw". n.1;

2 Sheets-Sheet 2.

(NoModel'.)

E. R. MGMASTER.

WINDMILL.

PatentedApr. 26, 1887.

N. PETERS, Phutmhogrnpher, Wasmngtan.

UNITED STATES PATENT Ormea. f

EDWIN RUTHVIN MCMAS'IER, OF BELLONA, NFV FORK.

WINDMILL.

SPECIFICATION forming part o1' Letters Patent N o. 361,709, dated April26, 1887.

Application filed October 7, 1886. Serial No.215,630. (No model.)

To all whom t may concern.'

4Be it known that I, EDWIN RUTHWIN Mc- MASTER, a citizen of the UnitedStates, residing at Bellona, in the county of Yates and State of NewYork, have invented a new and useful Improvement in Windmills, of whichthe following is a specification.

My-invention relates to an improvement in windmills; and it consists inthe peculiar construction and combination of devices,that will be morefully set forth hereinafter, and particularly pointed out in the claims.

In the drawings, Figure l is a side elevation, partly in section, of awindmill embodying my improvement. Fig. 2 is a top plan view of thesame. Fig. 8 is an inner side view of the wheel. Fig. l.Lis a detailview of one of the blades. Fig. 5 is a vertical section through thewheel.

A represents a tower, which is provided at its upper side with acircular cap, B, having a circular central opening, G, and an annulargroove, D, in its upper side.

E represents a circular turn-table, which corresponds in size with thecap B, and is provided with a circular central opening, F. In the underside of the turn-table is made a series of vertical openings orrecesses, H, which are arranged in a circle of the same radius as theannular groove D, and in the said recesses are journaled anti-frictionrollers I, which enter the said annular groove, and thus support theturn-table on the upper side of the cap.

K represents aseries of vertical arms, which are attached to the turntable and extend downwardly on the sides of the openings Gand F, thelower ends of thesaid arms being turned outwardly to form horizontalspindles L, on whichY are journaled anti-friction rollers M, that bearagainst the under side of the cap B.

From the foregoing description it will be readily seen that theturntable is secured on the cap so that it may be rotated with verylittle friction, and that, owing to the rollers g M, which bear againstthe under side of the cap, it will be impossible to tilt or incline theturn-table from a horizontal position.

On opposite sides of the turn-table are secured bearing-blocks N, withinwhich is journaled a horizontal shaft, O, having the crank l? directlyover the opening F.

R represents a wind-wheel, comprising the hub S, which is securedrigidly to the shaft,

near the front end thereof, the radial rods T,

which project from the hub, and the circular rim U, which connects theouter ends of the rods. On the said rods are pivoted blades V, which arepreferably made of sheet metal, and are wider at their outer ends thanat their inner ends. On the front side of each blade, at the outer endthereof, is secured a semicircular outwardly-flaredflange, V, thefunction of which will be hereinafter explained. To the front end of theshaft O is secured a circular disk, W, and stay-rods W extend fromopenings which are made in the said disk to the outer ends of the radialrods on which the blades are pivoted.

Xrepresents a collar, which is secured on the shaft in rear of the hubof the windmill, the said collar being adapted to slide upon the shafttoward or from the hub of the windmill. A series of rods, Y, connect theinner ends of the blades to the said collar, and the latter is provided,near its rear side, with an annular groove, X.

. Z represents a yoke, which is bent from a single rod of metal, andfhasthe arms Z', which are secured in transverse openings made in the blocksN, whereby the yoke is adapted to slide or reciprocate longitudinally inthe said blocks.

The lfront ends of the arms Z are turned inwardly at right angles, toform bearings for antilfriction rollers c, which enter the annulargroove X ofthe sliding collar.

b represents a horizontal bar, which is secured to the upper side of theblocks N directlyiu line and over the crank-shaft, and to the rear endof the said bar is attached a vane, c, which is made solid. From thefront end of the bar b projects a vertical arm, d, to the upper end ofwhich is pivoted the front end of a curved lever, e. The said leverextends rearwardly and bears against one side of the vane, and isprevented from swinginglaterally away from the vane by a keeper orguideway, f, with which the vane c is provided. Theouter end of thelever e is provided with a series of openings, e'.

g represents a hook-rod, which is adapted to be attached to either ofthe openings e', and' to the lower end of the said rod is suspended aweight, h.

7c represents a bent lever, 'which is fulcrumed to the vane on a bolt orpin, Z, and is provided with a downwardly-extending arm, k', whichengages the yoke Z. The upper arm, k2, of the said bent lever isconnected to the lever c, near the front end thereof, by a pivoted link, m.

n represents a rod or cord, which is attached to the front end of thearm k2 of the bent lever and passes down through the openings in the capand turntable to the bottom of the tower.

o represents a sliding disk, which is secured on the front end of thecrank-shaft, and p represents rods which are attached at their frontends to the said disk, pass rearwardly through openings which are madein the hub of the wind-wheehand have their rear ends attached to thesliding collar. A coiled eXtensile spring, r, bears between the frontside of the hub and the rear side of the sliding disk, the function ofthe said spring being to keep the sliding collar normally pressedagainst the rear side of the hub of the wind-wheel, whereby theblades ofthe said wheel will be turned and presented to the wind at an angle ofabout forty-tive degrecs.

The operationof my invention is as follows: The vane keeps the wheelpresented to the wind, and the wheel is turned thereby by the force ofthe wind against the blades. In the event that the wind should increasein strength it will turn the pivoted blades rearwardly on the radialrods, so as to present them at a more acute angle to the wind, and thusdiminish its force and prevent the wheels from rotating too rapidly.Vhen the` blades are thus turned, the sliding collar, being connected tosaid blades by the rods Y, is moved rearwardly against the resistance ofthe spring r, thus moving the sliding yoke rearwardly and depressing thefront portion of the bent lever K, and thus drawing downwardly on therear end of the weighted lever e. By moving the Weight forwardly orrearwardly on the-lever e the pivoted blades are rendered more or lesssusceptible to the wind, and thus the speed of i5 the wheel can beregulated, notwithstanding the force of the wind. If it be desired toprevent the wheel from rotating, it is only necessary to draw downwardlyupon the rod or cord N, thus causing the bent lever 7a to move thesliding yoke and the sliding collar rearwardly, and thus turn thepivoted blades so that they align directly in the direction of the wind.

The function of the semicircular flanges V at the outer ends of theblades isto form cups which are adapted to hold the wind while the wheelis rotating, thus utilizing the entire force of the wind and preventingit from being spilled It will be observed that I utilize the vane aspivot-points for the levers e It, and also as a shield to protect theoperating levers from the direct action of the wind.

`Having thus described my invention, I claim- The combination, in awindmill, of the wheel having the feathered or pivoted blades,

the sliding yoke connected to ,the said blades to turn the same, thevane to direct the wheel to the wind, the vbent lever lr, pivoted to thesaid vane and having one end engaging the sliding yoke, the lever e,connected to the front end of the bent lever k andbearing against thevane, and a keeper or guide secured upon the vane to hold the lever ethereto, and adjustable weight devices for the latter, substantially asdescribed.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

EDWIN RUTHWI'N MCMASTER.

Vit-nesses:

MAsoN S. BALDWIN, l O. G. SHEARMAN.

